Making the trek all the way from Colorado, Greg Orr brought his family over to make some tracks at Holley's LS Fest with Runnin' Dirty, his twin turbo, LS swapped Buick Skylark. This Holley EFI equipped land speed machine just recently crested the 200 mph mark from the standing half mile mark. Greg and his son James made some quarter mile test passes at LS Fest and man does she run! Check it out!

See more of Runnin' Dirty here at Build Tune Race:

Build Tune Race